Question

I need to sort an nsmutablearray of nsdictionaries, using a keyed object from the dictionary. The object is an NSNumber. How would I sort the dictionaries in the nsmutablearray with the first object being the highest nsnumber?

Thanks!

Answer 1

With a custom comparator defined with a block (you can go other ways but this is quite compact):

NSComparator mysort = ^(id dict1, id dict2) {
    NSNumber n1 = [dict1 objectForKey:@"key"];
    NSNumber n2 = [dict2 objectForKey:@"key"];
    return (NSComparisonResult)[n1 compare:n2];
};

[yourArray sortUsingComparator:mysort];